The occurrence of eye blinks during a guilty knowledge test

Abstract

In the present experiment we examined whether eye blinks could discriminate between guilty and innocent examinees in a Guilty Knowledge Test (GKT). Based on the assumption that guilty examinees would experience more cognitive load when responding to the key items than to the control items, we hypothesized that they would display fewer eye blinks during the key items than during the control items. For innocent examinees, responding to the key and control items should be equally demanding, and no differences in eye blinks between key and control items were expected. A total of 26 participants took part in an experiment where 13 guilty examinees committed a mock theft (of an exam paper) and the remaining 13 innocent examinees went on with their normal business. All participants underwent a GKT whereby their eye blinks were measured. Both guilty and innocent examinees displayed the pattern of eye blinks that we predicted. The implications of the findings are discussed.     

Detecting truth in suspect interviews: the effect of use of evidence (early and gradual) and time delay on Criteria-Based Content Analysis,Reality Monitoring and inconsistency within suspect statements

The strategic use of evidence in interviews with suspects has been shown to increase the ability of interviewers to accurately and consistently distinguish truthful from deceptive accounts. The present study considers the effect of early and gradual revelation of evidence by the interviewer, and the effect of shorter and longer delay on the verbal quality of truth-teller and liar statements within a mock crime paradigm. It was hypothesised that gradual disclosure of evidence (1) in terms of inconsistencies (a) within statements and (b) between statements and such evidence and (2) of the criteria of Criteria-Based Content Analysis (CBCA) and of Reality Monitoring (RM) would emphasise differences in the verbal quality of truth-teller and liar statements. Forty-two high school students took part in the study. The use of statement-evidence and within-statement inconsistency appears to be a robust cue to deception across interview style and delay. This indicates that gradual disclosure in interviews may increase interviewer accuracy in veracity decisions by eliciting statement inconsistencies. However, gradual revelation and delay affected the ability of CBCA and RM criteria to distinguish the veracity of suspect statements.     

Differential association theory reconsidered: An extension and its empirical test

In 1974 the German methodologist Karl-Dieter Opp expounded and expanded Sutherland's differential association theory. In this article an empirical test of this version of the theory is presented based on data for 1196 boys and girls in the age range 12 to 17 years. Furthermore, some new and additional theoretical specifications about the social influence of others on the individual, all in accordance with the original ideas of Sutherland, are proposed and empirically tested. The differential association theory according to the version of K.-D. Opp is fairly well corroborated by the data. Only three of the postulated relationships are rejected. The theory explains 51% of the variance of criminal behavior, even considering that no criminal population is used for the test and only minor offenses are measured. The test also shows that the impact of the frequency of contacts with deviant behavior patterns on the development of positive definitions and on the frequency of communication about relevant techniques is substantial and cannot be ignored by criminologists. Furthermore, special analyses show that several propositions favor the theory. It is the deviancy of others that has the most substantial impact: the more youngsters have contact with their friends, the stronger the impact of the deviancy of their friends on the development of positive definitions or on the frequency of communication about techniques. The tests also show that the more youngsters identify themselves with others, the stronger will be the impact of the deviancy of the others on their norms. These results support the modification of the DA theory according to Opp and falsify some propositions of social control theory.     

Can Criteria-Based Content Analysis Distinguish Between True and False Statements of African-American Speakers?

The Criteria-Based Content Analysis (CBCA) technique is the core component of the Statement Validity Assessment (SVA), an interviewing process that attempts to judge allegations of child sexual abuse for truthfulness. As the nucleus of the SVA, the CBCA has been promoted as a way to detect truth by analyzing the verbal content of such an allegation. However, all conclusions of the CBCA's usefulness as an indicator of truth have been based on European and/or White perspectives, and this is the first study to address the implications of probable differences of verbal content meaning across ethnic groups. The results failed to support the hypotheses that Black speakers' truthful statements contained fewer criteria than Whites' statements, or that CBCA training would only enhance truth detection of White speakers. First, in contrast to earlier work, the present study found that, despite the fact that true and false statements contained criteria to differing degrees, the total number of CBCA criteria in an adult's statement was uncorrelated with truthfulness for statements made by Blacks or by Whites. A discriminant analysis showed that CBCA verbal content criteria did, in fact, have different significance for Whites than for Blacks. Certain CBCA criteria were stronger predictors of truth for one ethnic group than for the other. It is suggested that more research is needed before the CBCA is relied upon in criminal investigations.     

An empirical test of social control theory

A test of social control theory was operated on a random sample of about 2000 juveniles aged 12 to 18 years. A second test was performed 2 years later on a subsample of the original one, taking into account changes in the life situation with respect to the family, school, work, leisure, peers, and some values connected with delinquency. Both self-report data and official data were collected. Using the HOMALS technique, scales were constructed of family integration (parental control, communication with parents, family activities, and family climate), school integration (liking school, commitment to school values, school performance, and social behavior), leisure and peers (nature and involvement in leisure activities, bravado), and some normative statements. Changes in social integration were measured over a period of 2 years and compared to the impact of official intervention in delinquency cases by police or prosecutor. On the basis of path analysis and a LISREL model, we were able to conclude that there was no impact of police or prosecutor intervention on later delinquency, but there appeared to be a strong and inverse relationship between changes in social integration, or the bond with society, and the frequency of offending.This article is based on two Dutch research reports, which have been published in English inJuvenile Delinquency in the Netherlands (Junger-Tas and Block, 1988).     

Tokenism in policing: An empirical test of Kanter's hypothesis

This study presented the first quantitative test of tokenism theory (Kanter, 1977) in a municipal policing context with data collected from a large sample of Baltimore police officers (Gershon, 1999). In bivariate and multivariate analyses, the effects of gender and race status and their interaction on three dependent variables capturing the central dynamics of tokenism (visibility/performance pressure, contrast/social isolation, and assimilation/role encapsulation) were explored. The study found weak to moderate support for the theory, but no evidence of a distinct “double token” interaction effect between race and gender statuses. By and large, race status alone predicted the greatest tokenism consequences. Limitations and future directions for tokenism research in policing are discussed.     

Self-control and its manifestations among university students: An empirical test of Gottfredson and Hirschi's general theory

This article presents an empirical test of Gottfredson and Hirschi's general theory of crime. Measures of crime equivalents were regressed on a measure of self-control and other relevant independent variables to determine their independent effects. Self-control was found to have the strongest effect.     

A general theory of crime and computer crime: An empirical test

Computer crime has become a global issue and continues to rapidly grow; however, few studies had examined the applicability of a general theory of crime in explaining computer deviance. Using a panel of 2,751 Korean youths, the current study examined whether low self-control theory can be useful as a theoretical framework for explaining computer crime. The results indicated the applicability of low self-control theory in explaining both illegal download of software and illegal use of others’ personal identification online. Consistent with the theory's prediction, opportunity variables, especially hours of computer use, were found to be significant predictors of computer crime. The shortcomings of the current research and the directions for future research were discussed.     

An empirical examination of adolescence-limited offending: A direct test of Moffitt's maturity gap thesis

Purpose

Provide the first direct test of Moffitt's (1993) hypothesis linking the maturity gap with adolescent delinquency.

Methods

Data were drawn from the National Longitudinal Study of Adolescent Health (Add Health) and a direct measure of the maturity gap was constructed. Negative binomial regression models—survey-corrected to account for the Add Health research design—were estimated.

Results

Consistent with Moffitt's theory, the results of the analyses revealed that the maturity gap was predictive of minor forms of delinquency and drug use but not of more serious types of offending behaviors for males. Findings were less supportive of Moffitt's hypothesis for females.

Conclusions

Moffitt's maturity gap thesis is a viable explanation of adolescent delinquency, especially for males. This portion of the theory, which has largely gone unexamined, warrants further inquiry from criminologists.     

A re‐analysis that supports our main results: A reply to Levine et al.

Levine et al. (2018) criticized our meta‐analysis, but their conclusion was the same as ours: The cognitive approach to lie detection results in a modest improvement. We address and dismiss Levine et al.'s (2018) three criticisms. Regarding the ‘confound’, in our meta‐analysis we averaged the results of two cells on statistical grounds, which does not constitute a confound in statistical terms. Regarding ‘aberrant controls’, that depends entirely on the benchmarks selected and type of statistical test and meta‐analysis used. Regarding ‘unreliable data’, the claim that there is a positive relationship between ‘unreliable’ data and total accuracy in the cognitive lie detection conditions is not even supported by their own data (p = .16). We conclude with a request to Levine et al. to focus on our shared aim: to develop interview protocols that enable lie detection.     

Increasing Cognitive Load to Facilitate Lie Detection: The Benefit of Recalling an Event in Reverse Order

In two experiments, we tested the hypotheses that (a) the difference between liars and truth tellers will be greater when interviewees report their stories in reverse order than in chronological order, and (b) instructing interviewees to recall their stories in reverse order will facilitate detecting deception. In Experiment 1, 80 mock suspects told the truth or lied about a staged event and did or did not report their stories in reverse order. The reverse order interviews contained many more cues to deceit than the control interviews. In Experiment 2, 55 police officers watched a selection of the videotaped interviews of Experiment 1 and made veracity judgements. Requesting suspects to convey their stories in reverse order improved police observers' ability to detect deception and did not result in a response bias.     

An empirical test of the social support paradigm on male inmate society

While social support theory has been applied to a variety of criminal justice settings, there has been little empirical research on the effect of social support on inmate behavior. In this article, we test Cullen’s proposition that social support, in whatever form it manifests itself, has an effect on Korean inmates’ experiences. Specifically, we examine whether social support in an all-male prison environment explains inmate misconduct, victimization, fear of victimization, and the intent to commit crime in the future. We build upon previous research by using unique measures of the instrumental and the expressive dimensions of social support to determine their effect on reducing criminogenic engagement in a prison setting. The results indicate that social support is an important factor in reducing prison violence, enhancing pro-social behavior, and potentially reducing recidivism.     

Comparative analysis of true or false statements with the source monitoring model and the cognitive interview: special features of the false accusation of innocent people

Abstract

We describe two experiments designed to verify whether the source monitoring (SM) model categories and the cognitive interview (CI) contribute to distinguishing true from false statements. We used a 2 Type of Interview (Structured/Cognitive) × 2 Statement Condition (True/False) design with 18 interviewers in a sample group of 240 gender-matched university students being interviewed about a film fragment. In Experiment 1, participants who lied exculpated the protagonist from rape, whereas in Experiment 2 their lies were aimed at accusing an innocent person. As dependent variables we used criteria from the SM: details, supporting memories, thoughts and feelings and cognitive operations. The results suggest that the statements of honest participants interviewed using the CI provided more overall information than those obtained under any other condition. When a lie is aimed at exculpating someone from criminal behaviour, statements involve more cognitive operations and less sensory, temporal and contextual information, but only when the structured interview (SI) is used. When the lie is aimed at falsely accusing someone, the SI and the CI produce similar results. We discuss the forensic importance of these findings.     

An empirical test of techniques of neutralization regarding polluting behaviors in rural Iran

Crime, Law and Social Change - Environmental pollution is regarded as a major environmental crime in most countries; Iran is no exception. This study examines water and soil polluting behavior...     

Routine activity and labor market segmentation An empirical test of a revised approach

This article contends that routine activity theory has virtually ignored the motivated offender construct in terms of its measurement. We extend previous research testing routine activity theory by more accurately modeling the effects of labor market segmentation and other structural sources of offender motivation on variation in crime rates. A revised routine activity model is tested using data for the 100 largest cities in the US in 1980. The findings suggest that as secondary labor markets grow, urban crime can be expected to rise.     

Web Content Management Systems: An Analysis of Forensic Investigatory Challenges

With an increase in the creation and maintenance of personal websites, web content management systems are now frequently utilized. Such systems offer a low cost and simple solution for those seeking to develop an online presence, and subsequently, a platform from which reported defamatory content, abuse, and copyright infringement has been witnessed. This article provides an introductory forensic analysis of the three current most popular web content management systems available, WordPress, Drupal, and Joomla! Test platforms have been created, and their site structures have been examined to provide guidance for forensic practitioners facing investigations of this type. Result's document available metadata for establishing site ownership, user interactions, and stored content following analysis of artifacts including Wordpress's wp_users, and wp_comments tables, Drupal's “watchdog” records, and Joomla!'s _users, and _content tables. Finally, investigatory limitations documenting the difficulties of investigating WCMS usage are noted, and analysis recommendations are offered.     

An Empirical Test of the Behaviour Analysis Interview

The present experiment is the first empirical test of the Behaviour Analysis Interview (BAI), an interview technique developed by F. E. Inbau, J. E. Reid, J. P. Buckley, & B. C. Jayne (2001) designed to evoke different verbal and non-verbal responses from liars and truth-tellers. Inbau et al. expect liars to be less helpful than truth-tellers in investigations and to exhibit more nervous behaviours. Just the opposite predictions, however, follow from the deception literature, which notes that liars take their credibility less for granted and are therefore more aware of their responses and their impact on others. This suggests that liars' answers should be more helpful than truth-tellers' answers, and liars' non-verbal responses should appear more relaxed than truth-tellers' non-verbal responses. In the present experiment, 40 participants (undergraduate students) lied or told the truth about an event during a BAI interview. The interviews were coded according to Inbau et al.'s guidelines. The results showed that, compared to liars, truth-tellers (a) were more naive and evasive when explaining the purpose of the interview, and (b) were less likely to name someone who they felt certain did not commit the crime. Truth-tellers also exhibited more nervous behaviours. The results were consistent with the predictions of the deception literature, and directly opposed to the predictions of BAI.